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Finding the Fourth Proportional to 9,393.93, 12,937.48 and 7,261.61

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Solution

The fourth proportional to 9,393.93, 12,937.48 and 7,261.61 is: 10,000.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,393.93 : 12,937.48 = 7,261.61 : x
  2. Step 2: Convert to fraction form
    9,393.93/12,937.48 = 7,261.61/x
  3. Step 3: Cross multiply
    9,393.93x = 12,937.48 × 7,261.61
  4. Step 4: Simplify right side
    9,393.93x = 93,946,934.14
  5. Step 5: Solve for x
    x = 93,946,934.14/9,393.93
  6. Step 6: Final answer
    x = 10,000.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.